Forbes magazine published its 25th annual ranking of richest people on the planet, with the number of billionaires rising to 1,226 from 140 on the inaugural list. Warren Buffett, the Sage of Omaha, retained his third place and was the highest placed from the world of finance.

The Sage of Omaha retains his No. 3 spot

The billionaires on the list this year were worth a record $4.6 trillion with Mexican telecommunications tycoon Carlos Slim topping the rankings at $69bn, according to Forbes. The full list can be seen at [ www.forbes.com/billionaires/ ].

The other representative from the finance sphere in the Top 20 is Michael Bloomberg, mayor of New York, who makes 20th place with $22bn.

George Soros, former chairman of Soros Fund Management, is ranked 22nd with $20bn, despite retiring and changing his hedge fund into a family office. James Simons, founder of Renaissance Technologies, also retired from his quant fund in 2010 but is still 82nd on the list with $10.7bn.

Last week Forbes said Ray Dalio of Bridgewater Associates was the world’s highest earning hedge fund manager last year after making an estimated $3bn. Dalio is 88th on the billionaires list with a total $10bn.

Andre Esteves, chief executive of Brazilian investment bank BTG Pactual, is at 377 and worth an estimated $3bn. He could move up the list next year as BTG Pactual has filed to go public in Brazil and Amsterdam.

The youngest billionaire in the rankings is Dustin Moskovitz who is worth $3.5bn at just 27 years of age. Moskovitz is eight days younger than his former roommate at Harvard, Facebook chief executive Mark Zuckerberg, and was the social network’s third employee. Forbes said Moskovitz has signed up to the Giving Pledge launched by Bill Gates and Warren Buffett to encourage philanthropy. He could also change his ranking next year as Facebook has also filed to go public.

The richest new billionaire is Colombian financier Alejandro Santo Domingo who is worth $9.5bn and took over conglomerate Santo Domingo Group after his father died last year.